Details, datasheet, quote on part number: PSB2170H
CategoryCommunication => Telephony => Speech => Speech Terminals
TitleSpeech Terminals
DescriptionAcoustic Echo CANceller
CompanyInfineon Technologies Corporation
DatasheetDownload PSB2170H datasheet
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Features, Applications

PSB 2170 Revision History: Current Version: Data Sheet 01.98 Previous Version: Preliminary Data Sheet 10.97 Page (in previous (in new Version) Subjects (major changes since last revision)

Edition 01.98 This edition was realized using the software system FrameMaker®. Published by Siemens AG, TS © Siemens AG 1998. All Rights Reserved. Attention please! As far as patents or other rights of third parties are concerned, liability is only assumed for components, not for applications, processes and circuits implemented within components or assemblies. The information describes the type of component and shall not be considered as assured characteristics. Terms of delivery and rights to change design reserved. For questions on technology, delivery and prices please contact the Semiconductor Group Offices in Germany or the Siemens Companies and Representatives worldwide (see address list). Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Siemens Office, Semiconductor Group. Siemens is an approved CECC manufacturer. Packing Please use the recycling operators known to you. We can also help you ­ get in touch with your nearest sales office. By agreement we will take packing material back, it is sorted. You must bear the costs of transport. For packing material that is returned to us unsorted or which we are not obliged to accept, we shall have to invoice you for any costs incurred. Components used in life-support devices or systems must be expressly authorized for such purpose! Critical components1 of the Semiconductor Group of Siemens AG, may only be used in life-support devices or systems2 with the express written approval of the Semiconductor Group of Siemens AG. 1 A critical component is a component used in a life-support device or system whose failure can reasonably be expected to cause the failure of that life-support device or system, or to affect its safety or effectiveness of that device or system. 2 Life support devices or systems are intended (a) to be implanted in the human body, or (b) to support and/or maintain and sustain human life. If they fail, it is reasonable to assume that the health of the user may be endangered.

Overview.9 Features.10 Pin Configuration.11 Pin Definitions and Functions.12 Logic Symbol.15 Functional Block Diagram.16 System Integration.17 Full Duplex Featurephone for ISDN Terminal.17 DECT Basestation with Full Duplex Featurephone.18 H.320 Videophone with Full Duplex Speakerphone (3.4 KHz audio).19 H.324 Videophone with Full Duplex Speakerphone (3.4 KHz audio).21 Videophone with External Line Interface.23 Videophone with Software Video Compression.24 Full Duplex Speakerphone in Car Environment.26 Functional Units.427 Full Duplex Speakerphone.29 Echo Cancellation (Fullband Mode).30 Echo Cancellation (Subband Mode).32 Echo Suppression.34 Speech Detector.36 Speech Comparators (SC).39 Attenuation Control.41 Echo Suppression Status Output.42 Loudhearing.42 Automatic Gain Control.42 Fixed Gain.44 Mode Control.44 Operation in Noisy Environment.46 Modes of Operation.47 Noise Controlled Adaptation.48 Correlation Adaptation.49 Double Talk Detection Adaptation.50 Attenuation Reduction Adaptation.51 Minimal Attenuation.52 Adaptation Timing Control.53 Loudspeaker Gain Adaptation.55 Comfort Noise Generator.56 Line Echo Cancellation Unit.57 DTMF Detector.58 Call Progress Tone Detector.59 Alert Tone Detector.61 Caller ID Decoder.62


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